Is K83.1 a billable ICD-10-CM code?

Yes. K83.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does K83.1 sit in the tabular list?

Diseases of the digestive system (K00-K95), in the block Disorders of gallbladder, biliary tract and pancreas (K80-K87).

What cannot be coded together with K83.1?

K83.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above K83.1 (K83) and apply to it just the same.

K83.1

K83.1 — Obstruction of bile duct

Billable / specific codeICD-10-CM

K83.1 is a billable, specific ICD-10-CM code for obstruction of bile duct. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

congenital obstruction of bile duct (Q44.3)
obstruction of bile duct with cholelithiasis (K80.-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Occlusion of bile duct without cholelithiasis
Stenosis of bile duct without cholelithiasis
Stricture of bile duct without cholelithiasis

Excludes1 inherited from the categories above K83.1

These are not written on K83.1, but they bind it: a note on a category applies to every code beneath it. Billing K83.1 with anything listed here is a denial.

Written on K83 — Other diseases of biliary tract

postcholecystectomy syndrome (K91.5)

Excludes2 inherited from the categories above K83.1

Also inherited, and the opposite of Excludes1: these conditions are not part of K83.1, but a patient can have both, so you may code both.

Written on K83 — Other diseases of biliary tract

conditions involving the gallbladder (K81-K82)
conditions involving the cystic duct (K81-K82)

Risk adjustment

K83.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 68 Cholangitis and Obstruction of Bile Duct Without Gallstones0.388 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

K83.1 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
A56421Billing and Coding: CT of the Abdomen and Pelvis
A56798Billing and Coding: Vitamin D Assay Testing
A57414Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)

How K83.1 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to K83.1.

Cholestasis NEC
Mirizzi's syndrome(hepatic duct stenosis)
Jaundice›obstructive
Jaundice›regurgitation
Obliteration›bile duct(noncalculous)
Obliteration›common duct(noncalculous)
Obstruction, obstructed, obstructive›ampulla of Vater
Obstruction, obstructed, obstructive›bile duct or passage(common) (hepatic) (noncalculous)
Obstruction, obstructed, obstructive›biliary(duct) (tract)
Obstruction, obstructed, obstructive›common duct(noncalculous)
Obstruction, obstructed, obstructive›hepatobiliary
Occlusion, occluded›bile duct(common) (hepatic) (noncalculous)

Code history

K83.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share K83. If K83.1 is not quite right, the correct code is usually one of these.

Questions about K83.1

Is K83.1 a billable ICD-10-CM code?: Yes. K83.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does K83.1 sit in the tabular list?: Diseases of the digestive system (K00-K95), in the block Disorders of gallbladder, biliary tract and pancreas (K80-K87).
What cannot be coded together with K83.1?: K83.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above K83.1 (K83) and apply to it just the same.